JPH0292488A - Mask for laser marking - Google Patents

Abstract

PURPOSE:To deal with various kinds of markings by making small sizes assembling mask having one letter in one piece by punching a part corresponding to printing range as remaining one letter space with a metal plate, laminating some pieces and setting to a positioning table. CONSTITUTION:The positioning table 1 has punching hole 4 for punching the printing range at center part and positioning pins 3 arranged as one pair at both sides. The one letter mask 2 arranges one pair of fixed holes 8a, 8b corresponding to every one pairs in the positioning pins 3 on the base 6 of the metal plate. The punching letter 7 is punched while shifting the position in the range corresponding to the printing range, and further, the punching holes 9a, 9b are punched and six kinds of one letter masks 2 are laminated at every one ranks and fixed by holding with a fixed frame 5 from upper part. By this method, various kinds of the markings can be dealt with and as the mask is made of the metal, this can be used to YAG laser and carbon dioxide gas laser, too.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a mask for laser marking.

[Conventional technology]

Conventional laser marking masks use either a metal plate on which the necessary number of characters are stamped or a glass plate on which the necessary number of characters are written.

In the case of a metal plate, one mask was used for one laser irradiation, and in the case of a glass plate, one or several masks were used one on top of the other.

[Problem to be solved by the invention]

With the conventional laser marking mask mentioned above, if a metal mask is used, only one mask (one type) can be used for one laser irradiation, so in order to change the type and content of the marking, a new mask is required. The disadvantage is that you have to create

In addition, when using glass masks, several masks can be stacked, so the type and content of markings can be changed up to several types, but there is a limit to the number of stacks depending on the laser light transmission ability, and in the case of carbon dioxide laser. has the disadvantage that a glass mask cannot be used due to the characteristics of the laser.

[Means to solve the problem]

The laser marking mask of the present invention includes a positioning base in which at least a central marking area is punched out and a plurality of positioning pins arranged in pairs in a plurality of rows are planted on both sides of the marking area. , each of which has a pair of fixing holes into which one pair of the positioning pins are respectively fitted, and whose positions are shifted from each other in an area corresponding to the stamping area to form one punched character, and the punching. It is configured to include a plurality of types of one-character masks made of a metal plate in which at least an area corresponding to the stamping area is punched out, leaving an area for one character corresponding to the character.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a plan view of the first embodiment of the present invention, and FIG. 2 is a plan view of the first embodiment of the present invention.
It is a top view of the single character mask of a figure.

As shown in FIGS. 1 and 2, the positioning table 1 has a punched hole 4 in which at least a central part of the marking area is punched out, and a punched hole 4.
It has 18 positioning pins 3 which are arranged in pairs in three rows on both sides, and six positioning pins are provided in each row.

- The character mask 2 has positioning pins 3 on the base 6 of the metal plate.
one pair of fixing holes 8-,
8b is provided, and n (n≧
1 (an integer of 1), shift the position by one character, punch out a specific punching character 7, and then punch out the fixing holes 8-, 8b and the punching character 7.
Punch holes 9-. leaving an area for one character. 9b is a substantially rectangular plate that is punched out, and there are 18 types corresponding to the punched characters and their positions on the mask. Note that the fixing hole 8b is attached to the base 6.
The hole is elongated so that the position can be adjusted in the length direction.

Using the one-character mask 2 formed in this way for each row starting from the outside of the positioning pins 3 that form a pair on the left and right sides of the punched hole 4, insert the fixing holes 8-, 8b into the corresponding positioning pins, Overlay 6 types of single character masks 2 per row,
Fix it by pressing it with the fixing frame 5 from above.

FIG. 3 is a plan view of a second embodiment of the invention.

As shown in FIG. 3, in the second embodiment, the frequently used solid stamp part is one medium-sized mask 10, and only the part that constantly changes, such as the serial number in the marking, is covered with three types of one-character masks 2. It is designed so that it can be rearranged.

FIG. 4 is a plan view of a third embodiment of the invention.

As shown in FIG. 4, the third embodiment is a one-character mask 2.
are arranged in the vertical direction of the marking.

-a, since the marking has fewer lines in the vertical direction than the number of characters in the horizontal direction, -character mask 2. The length of can be shortened.

Also, -character mask 2. The number of stacked sheets in one row is reduced, and when only a portion is changed, workability is improved and there is an advantage that setting can be done in a short time. Also, -character mask 2.
2. The single character mask you are working on will also be shorter. deformation disappears.

〔Effect of the invention〕

As explained above, the present invention has the effect of being able to handle various markings by making a small combination mask with one character - from a metal plate, stacking many of these masks and setting them on a positioning table. Furthermore, since it is a metal mask, it has the advantage of being usable for both YAG lasers and carbon dioxide lasers.

In addition, in the past, only one mask was used for each type of mask, and only a few masks were stacked one on top of the other, so a new mask was required for each type of stamp, making mask management extremely difficult. This has the effect of making mask management easier by managing single character masks of only numeric types.

Furthermore, when stamping a new product, there is no need to create a new mask for the new product, which not only reduces costs, but also reduces the time it takes to create a new mask only by assembling the masks, significantly shortening delivery times. There is.

[Brief explanation of drawings]

FIG. 1 is a plan view of the first embodiment of the present invention, and FIG. 2 is a plan view of the first embodiment of the present invention.
FIGS. 3 and 4 are plan views of a single character mask, respectively, of second and third embodiments of the present invention. 1.11...Positioning base, 2.21...-Character mask, 3...Positioning pin, 4...Punching hole, 5...
Fixed frame, 6...Base, 7...Punching characters, 8-. 8
b...Fixing hole, 9. ．． 9b... punching hole, 1o...
Medium size mask. Agent Patent Attorney Shingyu Uchihara

Claims (1)

[Claims] a positioning table having at least a central stamping area punched out and a plurality of positioning pins arranged in pairs on both sides of the stamping area in a plurality of rows, each of which is one of the positioning pins; A pair of fixing holes are fitted into each pair, and the positions of the punched characters are shifted from each other in the area corresponding to the stamping area to form one punched character, and an area corresponding to the one character is formed. 1. A mask for laser stamping, comprising a plurality of types of one-character masks made of a metal plate in which at least the remaining region corresponding to the stamping region is punched out.